<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <script src="../node_modules/vue/dist/vue.js"></script>
</head>
<body>
    
    <div id="app">


        输入框：<input :type="type">

        <hr>

        <button @click="pwdOrTxt">切换密码框</button>


    </div>


    <script>


        new Vue({
            el: '#app',
            data: {
                type: 'text'
            },
            methods: {
                pwdOrTxt() {
                    this.type = 'password';
                }
            }
        })

    </script>

</body>
</html>